The Therm Standard Flange Adapter Kit [1" Threaded] is a service replacement component for heater repair, maintenance, or rebuild work. It is intended to help restore the function of the original heater assembly by replacing a worn, damaged, corroded, or missing part in the equipment system. Heater parts can vary by model generation, gas type, voltage, header material, and installation configuration, so the safest approach is to compare the existing component, heater model, and part number before purchase. Proper fit helps support reliable ignition, heat transfer, water flow, sealing, or cabinet protection depending on the role of the part. Key details from the item listing include 1" Threaded. Manufacturer or brand reference: Therm Products. Part number: 20-0151. Designed for compatible Therm Products equipment or replacement applications Key listing details: 1" Threaded Supports heater repair, service, or restoration of the original equipment assembly Confirm heater model, voltage or fuel configuration, and part number before installation Part number 20-0151 should be used as the primary compatibility reference